Salvation of the Soul

The Christians love talking about 'salvation'. Their salvation consists in being submissive to their Lord (as interpreted by the Church) in the hope being raised from the dead and lifted  (in their old identity of body and mind) to Heaven where they will enjoy 'eternal life'.
Didn't Jesus say 'be as a child', not 'be like a child' to his followers? If one can be 'as a child', one can keep his mind pure, unsullied, undefiled by viccicitudes of life. But if one becomes like a child, one becomes naive, needy, dependent, hankering for protection and hopefully eventual salvation from a 'heavenly father'.
What are men trying to save themselves from, anyway? From suffering, I guess. And where do sufferings come from? The most convenient things to blame are the world, life situations, other people... But if each of us look into our own lives, can we honestly declare that we've never caused suffering to some other beings (human or non-human) in this life? Who made us come back to suffer in the first place? Our parents... God...? Is liberation, freedom from this pepetual cycle of life and death, possible at all?
A very possitive firmative is given by the Tibetan sages and yogins as interpreted by THE TIBETAN BOOK OF THE GREAT LIBERATION by W. Y. Evans-Wentz. The bondage of births and deaths, of human suffering, according to the yogins, is caused by our own individual mind. The human existence is just a process of storing up mental impressions gathered from life situations. These impressions don't die with the physical death of the individual, and this is termed by some optimists as the 'immortality of the soul'. These accumulated mental concepts and impressions go into a 'passive' state after death which means they now start being released, like the winding-down process of a clock work. When the karmic potentialities are run down, there is rebirth so the cycle starts all over again. '...the ultimate goal of the yogin is to put an end to this perpetual and monotonous oscillation of mind between the latency of the after-death state and the activeness of the human state', states the author.
Salvation is consisted not in a blissful, eternal survival in a heaven or some such abode of joy, but merely in a quiescence from the things that men generally value in life. __ The Buddhist Doctine of Anatta by Dr. G.P. Malalsekara
...salvation is not to be won through the grace and will of some supreme deity, but in virtue of self-directed effort.
When there is no longer a clinging to selfhood, when all the external play of sangsaric energies is allowed to subside, because there is no longer attachment to any of them, then there is that state of absolute quiescence of mental activities which our text refers to as the natural state of the mind.
-THE TIBETAN BOOK OF THE GREAT LIBERATION by W.Y. Evans-Wentz